JPS6249261B2 - - Google Patents
Info
- Publication number
- JPS6249261B2 JPS6249261B2 JP54070511A JP7051179A JPS6249261B2 JP S6249261 B2 JPS6249261 B2 JP S6249261B2 JP 54070511 A JP54070511 A JP 54070511A JP 7051179 A JP7051179 A JP 7051179A JP S6249261 B2 JPS6249261 B2 JP S6249261B2
- Authority
- JP
- Japan
- Prior art keywords
- nitrophthalic acid
- nitrophthalic
- acid
- separating
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
- C07C201/06—Preparation of nitro compounds
- C07C201/16—Separation; Purification; Stabilisation; Use of additives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH613578A CH635065A5 (de) | 1978-06-05 | 1978-06-05 | Verfahren zum trennen von gemischen aus 3- und 4-nitrophthalsaeure. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54160334A JPS54160334A (en) | 1979-12-19 |
| JPS6249261B2 true JPS6249261B2 (hu) | 1987-10-19 |
Family
ID=4304824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7051179A Granted JPS54160334A (en) | 1978-06-05 | 1979-06-05 | Separation of 33and 44nitrophthalic acid mixture |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4284797A (hu) |
| JP (1) | JPS54160334A (hu) |
| BR (1) | BR7903493A (hu) |
| CA (1) | CA1101883A (hu) |
| CH (1) | CH635065A5 (hu) |
| DE (1) | DE2922519A1 (hu) |
| FR (1) | FR2428025A1 (hu) |
| GB (1) | GB2022584B (hu) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3308460A1 (de) * | 1983-03-10 | 1984-09-13 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von m-nitrobenzoesaeuremethylester |
| DE69804753T2 (de) * | 1997-03-21 | 2002-11-28 | Sumikin Chemical Co., Ltd. | Verfahren zur trennung von isomeren der nitrotoluolsaeure |
| CN100432042C (zh) * | 2004-12-01 | 2008-11-12 | 卢宪春 | 4-硝基邻苯二甲酸的提纯工艺 |
| CN1308677C (zh) * | 2004-12-29 | 2007-04-04 | 南京大学 | 3－硝基或4－硝基邻苯二甲酸及其杂质的高效液相色谱分析法 |
| CN1321972C (zh) * | 2005-06-27 | 2007-06-20 | 潘健 | 从苯酐硝化制备3－硝基邻苯二甲酸的反应母液中制备4－硝基邻苯二甲酸的方法 |
| CN101134728B (zh) * | 2007-09-27 | 2012-07-11 | 扬州大学 | 硝基邻苯二甲酸同分异构体混合物的分离方法 |
| WO2012097116A2 (en) | 2011-01-14 | 2012-07-19 | Celgene Corporation | Isotopologues of isoindole derivatives |
| CN104974044A (zh) * | 2015-06-04 | 2015-10-14 | 江苏永安化工有限公司 | 一种3-硝基邻苯二甲酸的提纯方法 |
| CN109180493B (zh) * | 2018-10-15 | 2021-09-03 | 河北鸿旭翔药业有限公司 | 由混硝基邻苯二甲酸制备3-硝基邻苯二甲酸与4-硝基邻苯二甲酸的方法 |
| CN114634417B (zh) * | 2022-03-09 | 2023-05-05 | 河北海力恒远新材料股份有限公司 | 一种硝基邻苯二甲酸的制备方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1549885A (en) * | 1925-04-01 | 1925-08-18 | Commercial Solvents Corp | Production of 3-nitrophthalic acid |
| GB374010A (en) * | 1931-02-24 | 1932-05-24 | William Blythe And Company Ltd | Improvements in and relating to the resolution of mixtures of phenolic substances into their components |
| GB427251A (en) | 1933-08-18 | 1935-04-18 | Ici Ltd | Manufacture of intermediates for dyes |
| DE824815C (de) * | 1950-04-19 | 1951-12-13 | Cassella Farbwerke Mainkur Ag | Verfahren zur Herstellung eines sauren Wollfarbstoffs |
| DE936944C (de) | 1952-04-02 | 1955-12-22 | Basf Ag | Verfahren zur Herstellung von Kondensationsprodukten |
| DE935964C (de) | 1952-08-03 | 1955-12-01 | Hoechst Ag | Verfahren zur Erzeugung ueberfaerbeechter Faerbungen auf Fasergut aus Acetylcellulose sowie linearen Polyamiden oder Polyurethanen |
| GB736974A (en) | 1952-09-11 | 1955-09-14 | Monsanto Chemicals | Process for the separation of some aromatic acids and esters |
| DE1224731B (de) | 1964-12-16 | 1966-09-15 | Hoechst Ag | Verfahren zur Herstellung von Nitroterephthal-saeure |
| GB1165637A (en) | 1967-07-19 | 1969-10-01 | Coalite Chem Prod Ltd | Production of Nitrophenols. |
-
1978
- 1978-06-05 CH CH613578A patent/CH635065A5/de not_active IP Right Cessation
-
1979
- 1979-05-31 US US06/044,122 patent/US4284797A/en not_active Expired - Lifetime
- 1979-06-01 DE DE19792922519 patent/DE2922519A1/de not_active Withdrawn
- 1979-06-01 CA CA328,928A patent/CA1101883A/en not_active Expired
- 1979-06-04 BR BR7903493A patent/BR7903493A/pt unknown
- 1979-06-04 GB GB7919469A patent/GB2022584B/en not_active Expired
- 1979-06-05 JP JP7051179A patent/JPS54160334A/ja active Granted
- 1979-06-05 FR FR7914295A patent/FR2428025A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| CA1101883A (en) | 1981-05-26 |
| US4284797A (en) | 1981-08-18 |
| CH635065A5 (de) | 1983-03-15 |
| BR7903493A (pt) | 1980-01-22 |
| GB2022584A (en) | 1979-12-19 |
| JPS54160334A (en) | 1979-12-19 |
| FR2428025B1 (hu) | 1983-11-10 |
| GB2022584B (en) | 1982-09-08 |
| FR2428025A1 (fr) | 1980-01-04 |
| DE2922519A1 (de) | 1979-12-06 |
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